Quadding control



June 6, 1950 G. MILLER 2,510,709

QUADDING CONTROL Filed July 18, 1946 3 Sheets-Sheet 1 I N VEN TOR.

June 6, 1950 G, MlLLER 2,510,709

QUADDING CONTROL Filed July 18, 1946 5 Sheets-Sheet 2 F/ei Z Q I N VEN TOR.

GPA/V7 M/ZLZ'Y? ATTCI RN EYS G. MILLER QUADDING CONTROL June 6, 1950 .3 Sheets-Sheet 3 Filed July 18, 1946 mM M N/ WMM M ATTD RN EYB Patented June 6, 1950 UNITED STATES PATENT OFFICE Grant Miller, Washington, D. 0. Application July 18,1946, Serial No. 684,480

2 Claims: (01.199-47) My present invention relates to an improved quadding control and more-particularly to the automatic control mechanism employed to actuate the conventional quad control lever on a type casting machine.

The conventional type casting machine is provided with a pivoted control lever by means of which the operator actuate's the quadding mechanism to fill in short 'lines'of type matrices. The need for this "co trol occurs when for instance the last line of a paragraph has been assembled and this last line does not fill in the full length of the line. Normally the operator will move the quad control lever to quadding position whereupon the machine will quad or space out the balance of the line.

With proper attention on the part of the operator the manual control is satisfactory but when as often happens the operator forgets or neglects to return the control lever to nonquadding position the machine will continue to quad or space out the remaining line of the type slug making an indentation on the right hand end of the line spoiling the slug and often damaging the machine.

It is therefore the purpose of my invention to present an automatic control for the quadding lever which will effect the movement of the quadding lever to operating position if any type are assembled in the matrix less than the full line, and the balance of the line will be quadded. When that line has been cast, the control is returned to normal position without any action by the operator and the next line will be normal.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of the invention according to the best mode I have thus far devised but it will be understood that various changes and alterations may be made in the exemplified structure within the scope of the appended claims.

In the drawings:

Figure l is a front elevational view of the control mechanism of my invention with the elevator in matrix receiving position.

Figure 2 is a top plan view thereof.

Figure 3 is a front elevational view of the control mechanism with the elevator in castin position.

Figure 4. is a front elevational view with the elevator in matrix distributing position.

Figure 5 is a detail view of the quad control mechanism in part.

Figure 6 is a horizontal sectional view through Figure 5 showing the operating pawl.

Figure 7 is a detail view of the control mechanism as seen in Figurel.

Referring now to thedrawings in detail I have illustrated parts of the conventional type casting machine which will be recognized including the. matrix feed assembly 2 with the rod 4, controls 6 and adjustment arms 8. The frame in carries the elevator hereinafter referred to and .the ele-' vator jaw I2 is illustrated v as secured on'the e1e-" vator, with the usual guard rail l4 for retaining the assembled matrices in the law from the" matrix assembly.

As the matrices move to the left in the figures of drawing to the guard rail l4 it will if the line is full, engage the lever l6 against the tension of the spring l8 depending upon the set of the adjustment screw 20 to pull the link 24 the lever being slidable in the brackets 22.

A vertical plunger orbody member 26 is secured to the end of the link 24 as at 28 and to the arm 30 by means of link 32 which arm is journaled upon the bracket 34 on the elevator 36.

The elevator 36 conventional in design moves vertically in the guides 38 by means of the lower lever 40 with relation to the conventional casting wheel 42 and its operating gear 44.

A pawl 46 is slidably mounted in the elevator under control of the arm 30 and is adapted when in projected position to abut the outer end of the lever 48 which is operably connected with the forked lever 50 pivotally mounted on the upright 5|.

The forks of the lever 50 embrace the conventional quad control lever 52 having a normal position as indicated in Figure 5. As stated above if the matrices assembled constitutes a full line to be cast the link 24 will secure the plunger 25 and the arm to maintain the pawl 46 in retracted position so that as the elevator descends to casting position as in Figure 3, the pawl will not engage the lever 48 and the quad control lever 52 will not be moved.

However, if the line assembled is less than a full line the spring ill will urge the lever l6 and link 24 to the right in the figures, the plunger 26 proeoting the pawl 46 so that as the elevator lowers to casting position, the pawl will strike the end of the lever 48 moving the lever and the forked lever to the right and carrying the quad control lever to quadding position as shown in Figure 3. The conventional quadding mechanism will therefore operate to space out the unfilled line.

Upon the return of the elevator to distributing position the abutment 53 on the elevator will engage the lever 48 and return it and the quad control lever to regular full line position.

A plate 54 indicates the position of the quad control lever, and the control mechanism may be disconnected or rendered inoperative by means of a latch lever 58 pivotally mounted on the elevator at 60 and having a end 62 engageable over the pawl to secure it in retracted position regardless of the movement of the plunger and arm.

From the above description it will be apparent that the automatic control mechanism of my invention will immeasurably improve the quadding operation and will eliminate the ruination of cast slugs and damage to the type casting machine by the failure of the operator to return the quad control lever to normal position, at the proper time.

The mechanism is also adjustable by means of the screw 20 so that the margin variations may be met and. the automatic control will operate according to the set margins. The drawings i1- lustrate the setting on 30 ems ,or full measure. If the measure is say 25 ems, the adjusting screw can be adjusted to engage the guard rail for that measure.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a type casting machine, ,a quad control mechanism including a quad control lever, operpawl in the elevator operated by the arm, and

anactuating lever for the control lever whereby the pawl will engage the actuating lever and the movement of the elevator to casting position will engage the projected pawl with the actuating lever, and an abutment on the elevator engageable withthe actuating lever when the elevator returns to matrix distributing position.

GRANT MILLER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

